Huisheng Group Co., Ltd.

China Manufacturer with main products: Core Board Paper, Electric Insulating Linerboard(Pre-Compressed Pressboard) Paperboard, Cone Paper, Insulation Material, Laminated Board,...

Home  >Products Catalog > High-voltage electric insulating paperboard > PRESSBOARD for POWER TRANSFORMER INSULATION

PRESSBOARD for POWER TRANSFORMER INSULATION

FOB Price: 1300.00 - 3000.00 USD/Ton
Supply Ability: 17,000 Ton(s) per Year
Shipping: SEA
Payment Terms: L/C, T/T
In Stock
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Export Markets: North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
Packaging Details: 6400*3200MM, 4400*2200MM

Quick Details

  • Rated Voltage: 220KV
  • Application: High Voltage
  • Material: PAPER
  • Type: Insulation Sheet
  • Brand Name: HUISHENG

Specifications

We Produce pressboard of 0.8mm 8.0mm thickness. Our products  passed the tests by the China Machinery Industry Electrical Material Products Quality Supervision and Inspection Center in Nov. of 2008 and Apr. of 2011, the Pressboard is in accordance with IEC60641-3-1 standard.

the Quality standard of H4 PRESSBOARD

No

Property

Unit

Specification

Standard

1

Thickness tolerance

%

1.6mm

6%

1.6mm-8.0mm

4%

2

Density

G/cm3

1.6mm

1.00-1.20

1.6mm-3.0mm

1.10-1.25

3.0mm-8.0mm

1.15-1.30

3

Tensile strength

MD

MPa

1.6mm

100

1.6mm-3.0mm

105

3.0mm-8.0mm

110

CD

1.6mm

75

1.6mm-3.0mm

80

3.0mm-8.0mm

85

4

Elongation

MD

%

1.0mm-8.0mm

3.5

CD

1.0mm-8.0mm

4.5

5

Compressibility

%

1.6mm

10.0

1.6mm-3.0mm

7.5

3.0mm-6.0mm

5.0

6.0mm-8.0mm

4.0

6

Recoverable Factor after Compression

%

1.6mm

50

1.6mm-8.0mm

55

7

Shrinkage

MD

%

1.0mm-8.0mm

0.5

CD

1.0mm-8.0mm

0.7

TD

1.0mm-8.0mm

5.0

8

PLY BOND(Test by eye)

/

When Tearing, One or Several layers Bursting  with Obviously Rough Sighs&Coming-Out Fibres

9

Moisture

%

1.0mm-8.0mm

6.0

10

Ash

%

1.0mm-8.0mm

0.6

11

Conductivity of aqueous extra

mSm

1.6mm

3.0

1.6mm-3.0mm

4.5

3.0mm-6.0mm

6.0

6.0mm-7.0mm

7.0

7.0mm-8.0mm

8.0

12

PH of aqueous extra

/

1.0mm-8.0mm

6.0-8.0

13

Electrical strength in air

kV/mm

6.0mm

13.0

6.0mm-8.0mm

12.0

14

Oil absorbency

%

1.6mm

11.0

1.6mm-3.0mm

9.0

3.0mm-8.0mm

7.0

15

Electrical strength in oil

kV/mm

1.6mm

45

1.6mm-8.0mm

35

16

Degree of polymerization

/

/

1300

17

Tolerance of cutting Size

mm

1.0mm-8.0mm

10mm

18

Skewness tolerance

mm

1.0mm-8.0mm

10mm


PRESSBOARD FOR POWER TRANSFORMER INSULATION

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